Terminal Connection Diagrams

Main circuit connections

200V systems

Connection of Control Circuit Terminal

Frequency setting using variable resistor

Use a 5 kO variable resistor with a rating of 0.3 O or more. (Function code Cd002 = 3 or 5)

Use shielded wires. Connect the terminal end of the shielding to each common terminal and leave the other end open.

The control circuit has analog input channels VRF1 and IRF/VRF2. A variable resistor can be connected to each of the two channels. When connecting a variable resistor using the internal power terminals of the inverter, connect the resistor to the following power terminals:

VRF1: Connect the variable resistor to the +V1 terminal.

IRF/VRF2: Connect the variable resistor to the +V2 terminal.

Note: When using two variable resistors, do not connect them to the same terminal.

Use a 5 kΩ variable resistor with a rating of 0.3 W or more. (Function code Cd002 = 3 or 5)

Power cannot be supplied externally from this terminal. Connect only a variable resistor.

+V2

Variable resistor connection
terminal for frequency setting VRF2

VRF1

Analog voltage
input terminal

Input 0 to 10 VDC. When frequency setting is controlled by external input, the command frequency is proportional to the input signal voltage and the set gain frequency (Cd055) is applied when the input signal is 10 V.
(When the setting of function code Cd002 specifies external control of VRF1.)

The input impedance is about 31 kO.

The input voltage range can be changed from 0 to 5 V using the corresponding function code.

Current or voltage input (IRF or VRF2) can be selected using the corresponding function code

When frequency setting is selected, current input IRF or voltage input VRF can be selected using Cd002.

The code for selecting IRF or VRF2 depends on the function.

When VRF2 is selected, the hardware configuration is the same as VRF1.

When IRF is selected, input 4 to 20 mA DC. When frequency setting is controlled by external input, the command frequency is proportional to the input signal voltage and the set gain frequency (Cd063) is applied when the input signal is 20 mA. When IRF is selected, the input impedance is about 500 Ω.

Output
terminals

+24V

+24 V power output

24 VDC power (maximum allowable output current: 150 mA)

AOUT1
AOUT2

Internal analog output terminal (2-channel output)

Use the analog signal common terminal (ACM) as ground.

One monitor item is selected from Cd126 (AOUT1) and Cd128 (AOUT2), and indicated by an analog output.

The output signal voltage is from 0 to 10 VDC and the maximum allowable current is 15 mA. (Set the output coefficient because the output voltage decreases as the output current increases.)

The signal output can be varied from 0 to 20 times using function codes Cd127 (AOUT1) and Cd129 (AOUT2).